Detail 01
Blade-core design
Strings do not need to be aligned with individual pole pieces.

Independent shopping perspective
Built as a four-string J Bass neck-and-bridge upgrade set, the 9J1-L/S uses dual in-line coils to keep either pickup hum-cancelling when played on its own. Its original Bartolini voice is full and warm, with clear lows and a vintage-leaning character that retains the bass’s natural voice. Blade cores remove the need to align strings with individual poles. Shielding and epoxy-encapsulated coils further address radio noise and microphonics.

Strong match
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 01
Strings do not need to be aligned with individual pole pieces.
Detail 02
The pickups are designed to block radio noise and eliminate microphonics.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
Yes. The dual in-line coil design is hum-cancelling with either the neck or bridge pickup used alone.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.